Machine and process for treating fabric belts.



v F. STONE. MACHINE AND PROCESS FOR TREATING FABRIC BELTS.

APPLICATION FILED JULY 31, 1908.

937,726. Patnted 0613. 19, 1909.

2 SHEETS-QEEET 1.

F. STONE.

MACHINE AND'IROGESS FOR TREATING FABRIC BELTS.

APPLICATION FILED JULY 31, 1908.

.. Patented Oct. 19, 1909.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE,

FRANK STONE, or LAKEWOOD, onro, nssrenoa 0E ONE-HALF 'ro JESSIE R.MARTIN, 0E

LAKEWOOD, 01110.

MAGHINE Ann PROCESS FOR TREATING FABRIC BELTS.

Specification of Letters Patent.

Application filed. July 81, 1908. Serial No. 446,242.

To all whom it may concern:

Be it known that I, FRANK STONE, a citizen of the United States,,andresident of Lakewood, in the county of Cuyahoga and i which the belt iswound before treatment, r 2 is a tank provided with hollow walls 3through which steam is circulated to provide heat for the bath. Thisbath comprises the State of Ohio, have invented certain new and usefulImprovements in Machines and Processes for Treating Fabric Belts, ofwhich I hereby, declare the following to be a full, clear, and exactdescription, such as will enable others skilled in the art to which itappertains to make and use the same.

The objects of the invention are to provide mechanism and a process fortreating a fabric belt with a composition which will give life andflexibility thereto and will add greatly to the gripping power thereofupon the pulley over which it passes, and thus enable the belt to makebetter contact with the pulleys and to, utilize its full pullingstrength thereon. To accomplish these objects a gelatinous compositionis applied to the belt, the gelatinous composition being first heated toreduce'it to a fluid condition and hence capable of absorption by thefibrousfbelt, and after being thoroughly incorporated with the belt soas to vfill the; interstices thereof is chilled and approximately dried,so as to be permanently retained therein. .1 I

A further object of the invention is to stretch the treated beltwhilestill. heated and while the belt is still moist and to immediatelyset and harden thencomposition in the belt so that very little if anystretching of the belt will occur while it is in use.

The constant stretching of treated belts and the loss of time requiredin shortening them has heretofore occasioned much annoyance.

is a plan view 0 the complete apparatus'em- 1 ployed; Fig. 2 is a sideelevation; Fig, 3 is a side elevation of the stretching rolls show-o inthe sliding frame for the stretching ro ls; Fig. 4 is a longitudinalsectionv of the :izpplicator for a shorter treatment" shown in igs land2 and rFi' 5 is a plan View of the bottom thereof; ig. 6 is an elevationof a double formof applicator; and 'Flg. 7

is a plan view thereof; Fig. 8 is an elegaflon of a rod bearing fourguides for 5 6 tS. l r

In these views l is the roll' or drum upon gelatinous composition inwhich the belt is j immersed and which is reduced to a fluid state bymeans of the application of heat 'so that it is in condition topermeateevery part of the fabric, 4, 4 are rolls journaled in theblocks5, 5 which are secured at each end of the tank. Over these rollsthe belt passes from one end of the tank to the other so as to becomepermeated with the fiuidcomposition. I

The frames in which the rolls are journaled are vertically movable bymeans of screws 6, 6, passing through the frames 7, 7 so that when themachine is stopped. the

rolls and belt thereon can be lifted out of thetank. Y

After passing'through'the bath the belt is' passed between' the edges ofpreferably wooden scra rs 8, 8, which remove superfluous materialtherefrom, and thence the belt passes between guides A adjustable bymeans of screws S, and through a stretching frame formed in oppositesections, 9 and 10, one oft-which is $11 mgly movable in relation to theother. Journaled in each section are the'rolls'll, 11, and 12, 12, overthe process of stretching the belt is being carried on. The rolls ineach section are Patented Oct. 19, 1909.

relativelyadjustable toward arid from each movement of the boxes. Acommon operat 1 ing rod and wheel W and W and bevel gears G are employedto turn these screws.

The movable section is provided with piston rods 16, 16 and pistons17,517, which areforced outwardly in their respective cylinders 18, 18,by means of hydrau ic or other power, the inlet pipes being shown at 19,19,

and a gage 20 is employed to indicate the so as to consolidate andpartially dry the composition thereon. This blast is shown to passthrough the flattened conduit or tube 21, and after passingtherethrough, the action of the compresslng rollers 12, 12 serves tofurtherset' and consolidate the coatm and to finish the surface of thebelt, an

after the belt has been in this manner set and partially dried it isthen subjected to a cold air blast for a longer period to place thetreated belt in condition for industrial use.

' To accomplish the final cooling and drying of the belt it is passedover two setsof rollers 22, 22 and 23, 23 separated to expose the beltto a blast of air passing. through the blast chamber 24. -As soon as comleted the belt is wound upon. a drum 25. ower can be applied through theband wheels 27 and 28-and gears 29 and 30 upon the roller journals andin this 7 manner the belt 1s drawn through the machine,'31 is a blowerwhich can be powerful enough to supply the air blast required. When aless prolonged treatment is requireda diflerent device for applying thehot composition is employed and is shown in the figures. In this device40 is an elevated chamber located above the tank and having a horizontalbottom 41 perforated with openings 42. At each cnd of this chamber arejournaled the rolls 43, 43 arranged one above and one below each opening44, through which the belt can be passed for treatment. The compositionis pumped up from the tank by any suitable means such as a pump 45 andis showered down upon the belt and finally escapes through the erforatedbottom. In Figs. 6 and 7 a doub e form is shown of this deviceseparating the chambers to provide for treatment of two beltssimultaneously.

A very simple and efiicient method of treatin the belt and preparing itfor use is obtained by means of the above described machinery andprocess and a finished article is produced thereby, having the qualitiesof flexibility and durability and it is thoroughly stretched before itis dried.

Having described the invention what I claim as new and desire to secureby Letters Patent is moving superfluous material from said belt,

a guide rod over which said belt passes, a

a pair of blades having scraping 'edges between which the belt passes toremove superfluous material, a series of ressure rolls throughawhichsaid-belt is rawn, and a similar series of rolls opposed thereto overwhich said beltpa'sses, one of said series of rolls being movablerelatively tothe other series offrolls, means for applying pressure toone series of rolls, a blowing device and a passage through which saidbelt passes and through which the current of air from the blower passes,a blast chamber, a series of rolls therein, an opposed'series of rollstherei in over which said belt ing drum forthe belt.

passes, and awind- 3. In a device for the purpose o f'treating a beltwith ,a'heated composition. and; for stretching the same, a tank adaptedto hold of gripping rolls and an opposed series of gripping rolls, "overwhich r'olls said belt passes, one series of rolls being movablerelatively to the other, a stationary support for one series of rolls; amovable support for the other series of rolls, a set of cylinders uponthe stationary sup ort, therefor operatively ,connecte wit said movablesupport, means for supplying fluid under pressure to said cylinders andmeans for cooling and drying saidv belt.

4. A device for treating a fabric 19 It with a coating of heated compion, adap d to be solidified by a blast cold air, in combination, a tankadapted to contain the hot composition rolls in said tank,'arranged ateach end to support the belt therein, wooden scrapers at one end of thetank between which the belt travels, guide rod and guides adjustablethereon, between which said belt' is assed, a series of gripping rollsover whlch the belt passes, a slmilar series of gripping rolls opposedthereto, a device for exerting a pressure upon one series of rollsistons the. composition, a scraping device, a series 1 to separate themfrom the other series, while the belt is wound thereon to stretch thesame,

means for indicating the degree of pressure employed, means forpartially drying and solidifying the coating upon the belt,simultaneously with-stretching the same.

5. The heretofore described process of treatin a fibrous belt with acomposition adapte to provide flexibility anddurability theretoconsisting of first heating the comment by subjecting the belt to theinfluence position to enable it to enter the interstices of a coolingblast. 10 of the belt and immersing the belt therein In testimonywhereof I hereunto set my until coated, scraping off the superfluoushand this 19th day of July 1908.

coating, stretching the heated belt and simul- FRANK STONE. taneously'cooling and drying the same to In presence ofset and partially solidifythe coating and GEO. S; COLE,

surface the same and completing the treat- WM. M. MONROE.

